18838120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3541}}^1$

素因数の和:3578

約数の個数: 64

約数和(自身を含む): 51004800

約数和(自身を除く): 32166680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3541, 5320, 7082, 14164, 17705, 24787, 28328, 35410, 49574, 67279, 70820, 99148, 123935, 134558, 141640, 198296, 247870, 269116, 336395, 470953, 495740, 538232, 672790, 941906, 991480, 1345580, 1883812, 2354765, 2691160, 3767624, 4709530, 9419060, 18838120]

約数ペア:

[(1, 18838120), (2, 9419060), (4, 4709530), (5, 3767624), (7, 2691160), (8, 2354765), (10, 1883812), (14, 1345580), (19, 991480), (20, 941906), (28, 672790), (35, 538232), (38, 495740), (40, 470953), (56, 336395), (70, 269116), (76, 247870), (95, 198296), (133, 141640), (140, 134558), (152, 123935), (190, 99148), (266, 70820), (280, 67279), (380, 49574), (532, 35410), (665, 28328), (760, 24787), (1064, 17705), (1330, 14164), (2660, 7082), (3541, 5320)]